Detachable antislipping means



y 9 1939. H c. OAKLAND 2,157,561

DETACHABLE ANTISLIPPING MEANS,

Filed June 4, 1938 HHHHH.

HAM Y C OAA M/YO INVENTOR.

Patented May 9, 1939 UNITED STATES PATENT OFFICE 8 Claims.

My invention relates to improvements in antislipping devices attachable to the soles of footwear.

Among the more important objects of the invention is the provision of an improved detachable anti-slipping means, quickly and easily attachable to the sole of an ordinary dress shoe or oxford, whereby the shoe or foot-Wear may be employed in a variety of uses and Which is adapted in for athletic exercises; such as football, baseball, track meets, for mountain climbing, for members of Boy Scout organizations, and boys of the C. C. C. camps, and which is particularly well suited for the game of golf.

Especially is the device well adapted for converting a shoe suitable for offlce wear into suitable sport foot-wear for use when the o-fiice man reaches his scene of athletic activity. Hence, the necessity is avoided of going to the clubhouse to change his or her shoes before or after completing the exercise or game, or of having to be provided with an expensive pair of golf or athletic shoes which may be seldom used.

A fLuther object of the invention resides in its 9,5 improved adjustable means more adequately adapting it for a variety of diflerent sized shoes.

Yet further objects reside in the simplicity of the device; the convenience in its application and detachability; the comfort derived from its Wear; and the flexibility of shoe permitted in its use; and in its being an article of manufacture which may be sold at a normal price due to the fact that it may be manufactured cheaply.

Other objects, advantages, and features of the invention will hereinafter appear.

In the drawing forming a part of the specification:

Fig. 1 is an outside plan view of my improved anti-slipping device in full lines as applied to the out sole of a shoe and in dotted lines in its released position.

Fig. 2 is an inside plan view of the device per se wherein full lines and broken lines respectively indicate closed and open positions.

Fig. 3 is a section taken in line 3-3 of Fig. 2.

Referring in detail to the drawing, the main parts of the device are the main or anchor plate 4, the wing plate 5 pivotally secured or anchored to said plate 4 by a screw 6, the lever l pivotally secured to said wing plate by a rivet 8, and. the link 9 one end of which is pivotally secured to the pivoted .portion of said lever by a rivet Ill, the opposite end portion of said link being pivotally secured to said wing plate by a screw II.

The anchor plate 4 is shown suited to underlie about the medial two-thirds of the sole of the shoe to which it is applied, said anchor plate having at its outer edge a back lipsole engaging hooked flange l6 and a front hooked flange IS, the latter flange having an approximate alinement with the front edge of said anchor plate, near to which edge the lever l is pivoted.

The wing plate 5 is shown furnished at its outer edge with a single hooked flange 2| to engage the lipsole at that side of the sole, this flange cooperating with the flanges l5 and I6 of the anchor plate to grip opposite edges of the lipsole when the lever i has been swung to its locked position as shown in full lines in Fig. 1. Said lever consists of a resilient strip of metal, and when it is in its completely inswung position it is sprung over one of the calk studs 22 which serves as a keeper to prevent undesired outswinging of said lever.

In addition to said stud or calk 22, the anchor plate is shown furnished with three other marginal calks 23 and with a medial calk 24. Along its outer edge portion, the wing plate 6 has three calks 25.

Referring more in detail to the lever l and its operating connections, said lever is a flat strip of metal of an angular character having at its pivoted end a short arm 21 through which the pivot rivet 8 of the lever passes. The pivot screw ll, whereby the nonswingable end of the link 9 is connected with the wing plate 5, may extend through any one of a marginal series of holes 28 along the back edge of said wing plate. Along its front edge, said wing plate is likewise provided with a series of pivot holes 30 through any one of which the pivot screw 6 is insertable. Said pivot screw 6, screws into a threaded hole for it in the anchor plate 4; and said screw ll screws into a threaded hole for it in the link 9. After the device has been secured to and adjusted to suit the sole width of the shoe to which it is attached, said screws 6 and Il may have their nonheaded ends peened over to insure that they will not work loose. The lengths (dimensions transversely of the sole) of the anchor plate and wing plate are sufficient to secure an ample overlapping of said plates whatever adjustments are made of said screws 6 and I l, the anchor plate being next to the sole.

That portion of the anchor plate alongside of which the link 9 extends (said link lying in the same plane as the anchor plate) is materially narrowed or recessed at Owing to the fact that the three clamping or lipsole engaging hooks are arranged with single wing plate hook 2| in a centrally staggered relation to the two anchor plate hooks l5 and [6 at the opposite side of the sole, the hook 2| lies in the transverse line of the soles flexion, but little hindrance to the flexion of the shoe during walking is produced.

The corner portion of the anchor plate, which is furnished with the hooked flange I6, is furnished with a triangular extension I658 to support said flange.

The lever l is provided at its free end with a narrow flange If which forms a finger-nail hold to assist the operator in taking hold of the lever preparatory to swinging it from locked to released position. As shown in Fig. 2, when said lever is in the locked position its free end portion passes suificiently far beyond the plate flange E6 to render it easy to grasp between the thumb and fingers of the operator.

When a pair of the anti-slipping devices provided by the invention is purchased, the buyer will adjust the pivot screws 6 and i I to the proper position for adapting the article to be applied to the size of shoe which he wears. Or, the salesman may make this adjustment for him before delivery of the article. After said pivot screws have thus been adjusted it will only be necessary to outswing the lever l of each unit preparatory to attaching such unit to the shoe (right or left) for which it is intended, and then while such unit is held against the outsole in the proper position the lever 1 will be inswung, its free end being deflected away from the sole when it reaches the calk 22 and then sprung back after being passed over said calk, the lever thus being retained in its locked, clamping position.

As already mentioned, the non-headed ends of the adjusted pivot screws may be peened over to safeguard against their becoming detached.

It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes all modifications and equivalents which fall within the scope of the subject matter claimed.

What is claimed is:

1. In a device of the character described for attachment to the outsole of a shoe, said attachment comprising an anchor plate and a Wing plate, means to pivotally connect said plates together adjacent to their forward edges, an L- shaped lever means to pivotally connect one leg of said L-shaped lever to the rear edge portion of said anchor plate, a link pivotally connecting the opposite limb of said lever with said wing plate, a pair of lipsole engaging hooks projecting laterally from one edge of said anchor plate, a lip sole engaging hook depending from said wing plate in a central staggered relation to the lipsole engaging hooks of said pair, and means to retain said lever in its inswung position wherein it maintains said hooks in a lipsole gripping position.

2. The subject matter of claim 1 and, said retaining means consisting of a calk and said lever being sufiiciently resilient to be sprung over said calk.

3. In a detachable anti-slipping device for footwear, a main outsole calk-carrying plate, a likewise calked wing plate, pivot means connecting said plates in an overlapping relation to each other in one end portion of their overlap, said plates being provided with opposed lipsole engaging hooks, said pivot means being adjustable to provide for an increase and decrease of overlap,

a link secured by a likewise adjustable pivot connection located in the opposite end portion of the Wing plate, and a lever acting between the free end portion of said link and said main plate to grip said opposed hooks against the opposite edges of said lipsole.

i. In a detachable anti-slipping device for footwear, a main outsole calla-carrying plate, a likewise calked wing plate, pivot means connecting said plates in an overlapping relation to each other in one end portion of their overlap, said plates being provided with opposed lipsole engaging hooks, said pivot means being adjustable to provide for an increase and decrease of overlap, a link secured by a likewise adjustable pivot connection located in the opposite end portion of the wing plate, the end portion of the main plate which is adjacent to said link being recessed, said link moving Within said recess and lying in substantially the same plain as said main plate, and a lever acting between the free end portion of said link and main plate to grip said opposed hooks against opposite edges of said lipsole.

5. The subject matter of claim 4 and, said link consisting of a flat strip of metal and said main plate being completely out acros at the side thereof wherein said recess is formed.

6. In a device of the kind described, a main calk carrying plate having an edge portion furnished with hook means to engage one edge of the lipsole of a shoe, a wing plate pivotally connected with the opposite edge portion of said main plate in a contacting relation to its calked face, said wing plate having a hook to engage the edge of a lipsole opposite to the edge thereof engaged by the hooks of said main plate, said wing plate having calks to cooperate with the calks of said main plate, a link pivotally connected with the free end portion of said wing plate, and a lever pivotally related to said link and main plate, said lever being movable to an inswung-locked position to grip the hooked por-- tions of said plates against opposite edges of a shoe sole.

'7. An attachment for foot-wear of the character described, said attachment comprising a main and a Wing plate member having their forward ends pivotally connected together, an L- shaped lever having its short leg pivotally connected to the rear end portion of said main plate,

from said main plate and said wing plate, said lever being normally operable to swing said main plate and said wing plate about their pivotal axis through the medium of said link to and from a locked position wherein said hooks engage and disengage the lipsole of a shoe.

8. In a device of the character described for attachment to the outsole of a shoe, said attachment comprising an anchor plate and a wing plate, means to pivotally connect said plates together, said plates having lipsole gripping portions, and resilient means operatively connecting said plates including a resilient lever, said lever being swingable to an applied position wherein the gripping portions of said plates are caused to press against opposite lipsole edges, one of said plates having a calk over which said lever is springable to lock it in said applied position.

HARRY C. OAKLAND. 

